gethostbyaddr returns IP

[O.B.]

What reasons are there for the following returning the IP address
instead of the hostname?

gethostbyaddr($_SERVER['REMOTE_ADDR'])

[Gary L. Burnore]

On Sun, 05 Dec 2004 15:22:41 -0600, "O.B." <fu******@bellsouth.net>
wrote:

What reasons are there for the following returning the IP address
instead of the hostname?

gethostbyaddr($_SERVER['REMOTE_ADDR'])

The most common reason is that there's no reverse DNS entry for the
IP. The second most commone would be a misconfiguration on your end
disallowing lookups.
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gburnore@databasix dot com
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